Manta, Seaworld's new roller coaster opens on May 22nd 2009.  The track is installed and the cars rays are already being tested.  Looks like everything is on track for opening day! Manta is going to be a unique guest experience, the wait line is an attraction in itself with exhibits to view. The coaster is said to emulate the gliding of a Manta Ray including a part where the wing of the ra...